What does "blow" mean here?
"Blow" in this case means a figurative hit that hurts or harms someone, such as a comment or disastrous event. It is used to show that something bad has happened. In Google's case, they received a lawsuit after having been investigated for other matters. "Blow" can also be used in a literal sense. If someone says "they received a blow to the face," this means that someone has been hit in the face. Ex: That was a low blow. I can't believe you said that to him. Ex: The city received a harsh blow when the hurricane hit. Ex: The boxer got a blow to the knee during the match.